3 ms·
Don’t all fabrics already absorb IR and heat up? This new fabric would need to be the outer layer of a garment to receive light, so no insulation and no layeri
by cluckindan 2y ago
Don’t all fabrics already absorb IR and heat up?
This new fabric would need to be the outer layer of a garment to receive light, so no insulation and no layering. Most of the heat would not be warming you up. Seems kinda useless?
I would be more interested in a fabric that cools down under the sun.
- mungoman2 2y agoDo I have a treat for you https://youtu.be/G8YBV7GoF_s?feature=shared https://youtu.be/G8YBV7GoF_s?feature=shared
- rahimnathwani 2y agoDon’t all fabrics already absorb IR and heat up? Yes, but the paper's abstract says this fabric heats up faster: Through the incorporation of a modest amount (as little as 0.5%) of photothermally active polyaniline (PANI) and polydopamine (PDA) nanoparticles, this fiber exhibits exceptional photothermal conversion performance compared to pure thermoplastic polyurethane (TPU) fiber. Notably, when exposed to 600 W m−2 irradiation for 600 s, the equilibrium temperature of the photo-thermochromic elastic fiber rises impressively from the ambient 20.0 °C to 53.5 °C.
- cluckindan 2y agoSo basically useless in winter above 60 degrees latitude, when and where it would be most needed: sun is up only a few hours per day, and only one or two of those hours get 100W per square meter on a clear day.
- nejsjsjsbsb 2y ago50-90 latitude it might be useful plus mountains. Might be good for daytime heating of a tent?